include/asm-mips/rtlx.h

   1 /*
   2  * Copyright (C) 2004, 2005 MIPS Technologies, Inc.  All rights reserved.
   3  *
   4  */
   5
   6 #ifndef _RTLX_H
   7 #define _RTLX_H_
   8
   9 #define LX_NODE_BASE 10
  10
  11 #define MIPSCPU_INT_BASE       16
  12 #define MIPS_CPU_RTLX_IRQ 0
  13
  14 #define RTLX_VERSION 1
  15 #define RTLX_xID 0x12345600
  16 #define RTLX_ID (RTLX_xID | RTLX_VERSION)
  17 #define RTLX_CHANNELS 8
  18
  19 #define RTLX_BUFFER_SIZE 1024
  20
  21 /*
  22  * lx_state bits
  23  */
  24 #define RTLX_STATE_OPENED 1UL
  25
  26 /* each channel supports read and write.
  27    linux (vpe0) reads lx_buffer  and writes rt_buffer
  28    SP (vpe1) reads rt_buffer and writes lx_buffer
  29 */
  30 struct rtlx_channel {
  31         unsigned long lx_state;
  32
  33         int buffer_size;
  34
  35         /* read and write indexes per buffer */
  36         int rt_write, rt_read;
  37         char *rt_buffer;
  38
  39         int lx_write, lx_read;
  40         char *lx_buffer;
  41
  42         void *queues;
  43
  44 };
  45
  46 struct rtlx_info {
  47         unsigned long id;
  48
  49         struct rtlx_channel channel[RTLX_CHANNELS];
  50 };
  51
  52 #endif /* _RTLX_H_ */